Abstract: A case locking device is provided. For example, an outer case and an inner case used for various types of electronic devices, such as set-top boxes (STB), are connected by a lock using a resilient force from an elastic material, such as a spring, so that the outer case and the inner case may be separated from each other using only a separately provided jig. Accordingly, the outer case and the inner case may be connected to each other more easily and any general user may be prevented from separating the case arbitrarily, thus making it possible to effectively prevent catastrophic failures from occurring at the electronic device due to a user's arbitrary manipulation.

Abstract: The present invention relates to a case locking device. For example, the outer case and the inner case used for various types of electronic devices such as set-top boxes (STB) are connected by a locking means using a resilient force exerted from an elastic material such as a spring so that the outer case and the inner case may be separated from each other only by using a jig provided separately. Accordingly, the outer case and the inner case may be connected to each other more easily and any general user may be prevented from separating the cases arbitrarily, thus making it possible to effectively prevent catastrophic failures from occurring at the electronic device due to the user's arbitrary manipulation.